Channeling machine



Nov. 1, 1927.

E. J. RAVERTY CHANNELING MACHINE Filed March 1a. 1926 z Sheets-Sheet 1 44 1 .l. s I;

O 47 o o a 3.9

U o c a .60 0

60 7 ig 26 a D or 52 a1 a a of a 47 D a m .r 0

,10 6&9 15 i6 I .13 I 2 v I ru a 0 $5 a o 1 i2 Z0 2 m 0 JAE ' INVENTOR WITNES 3 Edward Jllawry.

ATTORNEYS More specifically,

tearing away Patented Nov. 1, 1927.

EDWARD If. aavna'rr, or

new ALBANY, Ernie-rm, nssrsnon TO HENRY n. MARTIN,

- on new ALBANY, INDIANA.

[Carma-1.1m niaoirmn.

Application filcd ifiarch 16, 1926. $cria1 No. 95,993.

The present invention is concerned with improvements in stone channelingmachmes 'ofthe general character in which drill carry ing clamps are vertically reciprocable upon sets of chair boards. The present invention relates particularly tdimprO-Ved means for mounting and bracing the chair boards, and to an improved frame construction which renders the entire machine more ruggedend durable in use. 1

A primary object of the invention is to provideaframe construction in which the chair boards' are so rigidly supported, that the shocks on the chair boards incidental to the striking of the drills on the stone cannot produceany looseness of the frame members or chair boards, and the machine willconsequently retain its efficiency over a long period of time. 7

the invention comprebends the provision of a frame work between the two sets of chair boards which effects rig-id connection of the chair boards to each other, so that all four chair boards are absolutely locked against vibration and against from the frames under the shocks and stresses incidental to operation of the machine.

A further specific object of thej invention is to provide a chair board reinforcing frame of such sturdy construction that thewinches for operating the cables which effect reciprocation of'the drill carrying clamps maybe mounted directly in the frame, rather-than on the main frame of the machine. I

A further object of the invention isto provide a machine embodying the advan tages noted above whichwill permit the free sliding movement of the drill clamps on or off ofthe upper ends of the chair boards Without interfering wlth the bracing frame,

Further objects of. the, invention areto provide a channeling machine frame of sim-* ple, practical construction,which may be manufactured with comparative economy.

With the above noted and other objects in View, the invention novelfeatures of tions and arrangements of parts, as will be more fully hereinafter set forth and pointed The invention may be Y out in the claims.

' morefully understood from the following descriptiojn'in connection with the accompanying drawings, whereinof each pair.

consists in ."certain construction and combma Fig. 1 is a perspective View of a stone channeling machine embodying the present invention.

Fig.2 is a view in front elevation'of the upper frame, showing the chair boards attached and with portions of the frame broken away and in section for .thesake of clearness.

Fig. 3 is a vertical sectional view7on theline 33 of Fig. 2.

Fig. is a sectional plan view on the line l-4 of Fig. 2.

In the drawings character 10 to designate the usual rails upon which the traction wheels 11 of the channeling machine roll. Supported upon the traction wheels is a heavy carriage or 1 main frame 12 mounting the usual power transmitting means and operatingineans for effecting movement of the sets of upper and lower drill clamps 13 and 14 carrying the drill securing means 13 and 14 lhe construction and arrangement of the driving, power transmitting and operating mechanism is entirely conventional and requires no description here. At the forward end of the carria 'e 12 there are mounted the usual I have used the reference bearing stands 15 superimposed upon which 7 are brackets 16. At each side of the forward end of the machine there are provided a pair of spaced vertical chair boards or slidesl'l' the lower, ends of which are bolted to horn brackets 18 by bolts 19. Thehorn brackets in turn are bolted to the main frame by bolts 20 and are attached to the rear chair board each pair is bolted directly to the main frame 12' by bolts 21. Both ofthe chair boards of each pair are also bolted tothe brackets 16 by the use of bolt 22.

As thus far described, the channeling ma chine may be of substantially conventional construction. The shocks and stresses incidental to the reciprocation of the drill carrying clamps 13 on the chair boards have heretofore resulted in loosening the connections between the upper ends of the chair boards and their bracing framea'and'it is to remedy this particular defect of the machine, that I have designed the novel type of upper chair board reinforcing frame'whichforms the subject matter of the present application. The" conventional manner of securing thelower-ends' of'the chair'boards asbrieiiy The forward chair board of outlined above, proves fairly satisfactory in use, provided that the upper ends of the chair boards are rigidly braced. Unless such bracing is accomplished, even the connections between the lower ends of the chair boards of the main frame sometimes work loose and render the machine inefficient due to the play at the drill clamps. p

The upper chair board bracing frame 111- cludes a pair of main transverse frame plates 25, formed if desirable with the curved recesses 26 in their lower edges. The lateral edges of the frame plates are bolted to angle irons 27, the outwardly facing flanges 28 of which are secured at intervals throughout their length to the chair boards 17 by bolts 29 or equivalent securing devices. Angleirons 27 extend approximately from the brackets 16 to the top of the frame plates 25, said frame plates terminating flush with the upper ends of the chair boards 17. Frame plates 25 thus brace the aligned chair boards of each pair against relative inward or outward movement toward or away from each other.

' Means is also provided for rigidly bracing the relatively heavy frame plates against movement toward or away from each' other, so that the chair boards are braced against movement in any direction. Means for bracing the frame plates 25 against movement may be best seen in Fig. 4, wherein it will be noted that angle irons 30 secured to the inner faces of the lateral edges of the frame plates 25 are bolted to vertically extending side plates 31. by bolts Plates 3i effectively lock the aligned lateral edges of the frame plates against relative movement or vibration. Side plates iii are reinforced by angles 33 bolted to the upper faces of the brackets'ltl by bolts passed through holes 34 in the angles. The aligned lower edges of the plates 25 are braced by the use of a spacer 35 bolted to the horizontal flanges of angles 36, thevertical flanges of which are bolted to the frame plates 25 by bolts 37.

Intermediate their ends, theupper edges of the plates 25 are rigidly secured by the use of a bridging or spacing element 39 in the nature of a short section of channel iron, the ends of which are connected to the horizontal flanges 40 of angle irons 4i bolted to the inner faces of the plates 25. Angle irons 41 extend the full length of the upper edges of the plates 25, and near their ends mount additional bridging piecesor cross plates 42 which serve as supports for sheave brackets 48 mounting sheaves 44.

The lower corners of the plates 25 are formed with aligned openings 45 and 46 adapted to serve as bearings for a winch shaft 47 and a counter shaft 48 respectively. The bearing openings 45 and 46 are reinforced by the use of apertured plates 49 bolted to h nner ai spf t e p a es, 2.

Drill clamps 13 are grooved to receive the chair boards 17 in the usual manner. It will be noted that the angle irons 27 project laterally beyond the frame plates 25 in order to provide for the accommodation of the rear flanges of the drill clamps between the chair boards and the side plates 31. The guides defined by the chair boards are unobstructed at their upper ends due to the fact that the sheave brackets 48 are set inwardly from the edges of the plates 25, and the drill clamps may be freely slidden off of, or on to the upper ends of the chair boards. Drill clamps 13 may be raised or lowered by chain cables 50, running over the sheaves 44 and wrapped about the winch shaft 47. The winch shafts are preferably operated by crank handles 51 connected to the counter shafts 48, these counter shafts having associated therewith the usual ratchet and pawl mechanism 52.

It has been previously customary to mount the winch shafts and counter shafts on the main frame of the machine. Mounting them in this position was rather inconvenient, but the upper bracing frame for the chair boards has heretofore not been sufficiently rigid and substantial to support the winch shafts.

From the foregoing description it will be apparent that I have provided means for rigidly and securely bracing the chair boards 17 against vib 'ation or movement in any direction, and that the pounding of the drills on the stone will be inoperative to cause any material looseness or any play between the chair boards and their associated supporting frames. Due to this fact, the machine may be used for a relatively ion; period of time without requiring tightening, and a stone channeling operation may be performed with expedition and accuracy.

The upper frame constriu-tiou may be. braced in the usual manner by the use of inclined struts or braces connecting the upper portion of the rear frame plate 25 with the rear end of the carriage or main frame 12.

It will be noted that the construction herein illustrated permits the chair boards 17 to be removed without dismantling the upper frame and leaving the, upper frame attached to the lower main frame. It will also be noted that the connection of the chair boards with their associated supporting members is such that the spacing of the chair hoard securing bolts 29 is substantially uni form-throughout the length of the chair boards. I V

Various slight changes and alterations might be, made in the general form and arrangement of parts described without departing from the invention. Hence I do not wish to limit myself to the details set forth, but shall consider myself at liberty to make such changes and alterations as Ill) fairly fall Within the spirit and scope of the appended claims.

I claim: I

1. A stone channeling machine including a main frame, a transversely disposed upper frame rigidly connected to the main frame and self-sustaining against compressive strains and having its ends disposed approximately in the plane of the sides of the main frame, pairs of vertical chair boards rigidly connected to the ends of the upper frame and the sides ofithe main frame and removable without disturbing the attachment orrelative positions of the main frame and upper frame. v

2. A stone channeling machine including a main frame, a transversely disposed upper frame rigidly connected to the main frame and self-sustaining against. compressive strains and having its ends disposed approximately in the plane of the sides of the main frame, pairs of vertical chair boards rigidly connected to the ends of the upper frame and the sides of the main frame and removable without disturbing the attachment or relative positions of the mam frame and upper frame, said upper frame including plates disposed in vertical planes and rigidly coupling the aligned chair boards of each pair.

A stone channeling machine including a main frame, a transversely disposed upper frame rigidly connected to the main frame and having its ends disposedapproximately in the plane of the sides of the main frame, pairs of vertical chair boards rigidly connected to the ends of the upper frame and the sides of the main frame and removable without disturbing the attachment or rela tive positions of the main frame and upper frame, said upper frame including plates rigidly coupling the aligned chair boards of each pair, by vertical angles extending approximately the full length of the ends of the plate.

4. A stone channeling machine including a main frame, a transversely disposed upper frame rigidly connected at its lower end to the main frame and having its ends disframe rigidly connected to the main frame and having its ends disposed approximately in the plane of the sides of the main frame, pairs of vertical chair boards rigidly connected to the ends of the upper frame and the sides of the main frame and removable without disturbing the attachment or rela tive positions of the main frame and upper frame, said upper frame including plates rigidly coupling the aligned chair boards of each pair, means rigidly coupling the plates to prevent independentmovement of the chair boards of a single pair, including vertical side plates set inwardly from the chair boards, and angle irons coupling the side plates and the edges of the first mentioned plates.

6. A claim 2 and wherein angle irons bolted to and projecting beyond the edges of the plates support the chair boards.

EDWARD 'J. RAVERTYL device of the character described in V main frame, a transversely disposed upper 

